Adjustable tracker-board for pneumatic playing attachments.



J. H. DIOKINSON. ADJUSTABLE TBAGKBR BOARD FOR PNEUMATIC PLAYING ATTACHMENTS.

APPLICATION FILE-D NOV; 24, 1908.

Patented Mar. 23, 1909.

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- easily and rapidly bringing either row of new and improved independent rows of tracker holes connected UNITED STATES PATENT OFFICE.

JOSEPH H. DICKINSON, O1 (IL-\NFORD, NEW JERSEY, ASSIGNOR TO AEOLIAN COMPANY, OF

NEW YO RK N. Y., A CORPORATION OF CONNECTICUT.

ADJUSTABLE TRACKER-BOARD FOR PNEUMATIC PLAYING ATTACHJYIENTS.

Patented March 23, 1909 Application filed November 24, 1908. Serial No. 464,316.

(.rani'ord, in the county of Union and State of New Jersey, have invented certain new and useful 'lmprr'ivements in Adjustable Tracker-Boards for Pneumatic Playing Attachments, of whichthe following is a specification.

This invention relates to improvements in adjustable tracker boards for pneumatic playing attachments for musical instruments. 1

The object of my invention is to provide a tracker board having two with ducts and to combine it with means for ducts into or out of operative communication with ducts leading to the player mechanisms, all of simple construction and efi'ective and reliable in action and in use.

In the accompanying drawings, inwhich like characters'ol' reference indicate like arts in all the figures, Figure 1 is a vertica sectional view of one embodiment of my new and improved adjustable tracker march with a playerv pneumatic and its valves. Figs. 2 and 3 and 4 are vertical detail sectional views on the line a---d, Fig. 11 showing different positions of the parts. Figs. 5, 6,

- and -7 are end views showing corresponding dill'crent positions of the parts. Figs. 8; 9 and 10 are corres ionding vertical "sectional views on the line Ii ll, Fig. 1]. showing dillcrent positions of the parts. Fig. ll is a side View of the shifting bar, parts being broken away and shown in section.

pneumatic 1, its valves 2 and 3 The player chest 4 are oi conventional and the wim construction. I

. The tracker board 5 is fixed in the music box 6, containing the musicrolls 7 and S. The tracker board 5 is provii-lcd in its outer edge with two Hmsof holes 9 and l() and the holes of one row may be larger 'than the holes 111 the other row, they may be greater or less in number and may he s )aced differ- -cntly-.. l or example there may ie'sixtv-five holes 9 an one row and eighty-eight holes 10 in the other row. Each hole 9 'IS connectml with aduct l1 and each hole 10 with a duct 1 2, which ducts for exam is may be composed of rubber tubing which ducts, or tube nipples connected therewith, terminate at "in the upper surface of the fixed block are spacedthe bottom edge of a transversely and vertlcally movable bar 13 in which said ducts are arranged in two parallel rows separated a short distance from each other laterally. On said bar 13 two chambers 14 and 15 are formed, which are provided with necks o1= nipples 16 for attachmg tubes for connectin thechambers with a suction device. ac duct 11 and 12 is connectedby a bleed hole 17 and 18 with its corresponding chamber 14 and 15 respectively.

Afixed bar 19 beneath the movable bar 13 is connected by ducts 20 with as many player pneumatics as there are holes in that row of oles in the tracker board having the great- The ducts 20 terminate l9 and uniformly and the ends of both rows of ducts in the movable bar 13 are also spaced uniformly'so as to be ca able of being est number of holes.

.brought to register with the on s of the ducts in the fixed bar, 19. v

The fixed bar 19 and the shiftable or mov- -able bar 13 are connected at their ends by links 21 pivoted. to each, and these bars are provided with recesses .22 containing springs Y 23securedat their upper ends at the top of the movable bar 13 and at their lower ends to the bottom of the fixed bar 19. The movable bar is-cap'able of lateral movements on the fixed block for a distance equal to the distance laterally between the two rows of ducts l1 and 1.2 in saidmovable her.

As shown in Fig. 2 the ducts 11 in the bar l3-are in communication with the ducts 20 and the ducts 12 are cut out of action and hence the sixty-ii ve note holes 9 of the tracker board only come into play. If the eightyeight note holes 10 are to come into play the movable bar 13 is shifted laterally from the position. shown in Fig. 2 and the corresponding figures 5 and 9, into the position shown in Fig. 4 and the corresponding figures 7 and" 10. -While moving the movable bar-13 is lifted clear of'thc fixed bar l9 as shown in Figs. 3, 6 and 9, the springs beingbrought into greater tension. The springs reseat the bar 3 on the bar 19 and hold it securely in place, for either adjustment.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

l. The combination with a tracker board having two rows of holes, one row being dif-t ferent from the other row, of a movable bar having two independent chambers, each connected by bleed holes with one of said rows of ducts and a fixed bar having a single row of ducts, capable of registering with either row of ducts in the movable bar and player pneumaticsconnected with the ducts in the fixed bar, substantially as set'forth.

2. The combination with a tracker board having two rows of holes, one row being dif' ferent from the other row, of a movable bar fercntfrom the other row, of a movable bar havin two independent chambers, each connecteil by bleed holes with one of said rows of ducts and a fixed bar having a single row of ducts, capable 0t registering with either row of ducts in the movable bar, the movable bar being laterally and vertically movable in relation to the fixed bar and player pneuinatics connected with the ducts of the fixed bar, substantially as set forth.

4:. The combination with a tracker board having two rows of holes, one row being different from the other row, of a movable bar having two independent chambers, each. connected by bleed holes with one of said rows of ducts and a fixed bar having a single row of ducts, capable of registering with either row of ducts in the movable bar, springs attachcd to both bars to hold the movable bar upon the fixed bar and player pneumatics connected with the ducts of the fixed bar, substantially as set forth.

5. The combination with a tracker board having two rows of holes, one row being different from the other row, of a movable bar having two ini'lependent chambers, each connected by bleed holes withone of said rows of ducts and a fixed bar having a single row of ducts, capable of registering with either nected by bleed holes with onevof said rows of ducts and a fixed bar having a single row of ducts, capable of registering with either row of ducts in the movable bar, links pivoted to both bars, springs attached to both bars and'player pneumatics connected with the ductsof the fixed bars, substantially as set forth.

Signed this 21st day of Nov., A. D. 1908.

JOSEPH H. DICKINSON. \Vitnesses:

A. A. Sco'r'r, A. W. SrENoE. 

